Bump actions/setup-node from 5 to 6 (#35)

Author: dependabot[bot]

.github/workflows/push.yml

@@ -15,7 +15,7 @@ jobs:
 
       # Install dependencies
       - name: Setup latest Node.js
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           check-latest: true